| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/1989 X1 | 1990 05 26.66296 | 19 31 00.90 | -01 59 51.0 | 897 | ||
| C/1989 X1 | 1990 05 26.67463 | 19 30 49.19 | -02 01 25.0 | 415 | ||
| C/1989 X1 | 1990 05 26.67831 | 19 30 45.61 | -02 02 08.6 | 415 | ||
| C/1989 X1 | 1990 05 26.69942 | 19 30 24.97 | -02 07 00.6 | 897 | ||
| C/1989 X1 | 1990 05 26.70579 | 19 30 18.52 | -02 08 15.5 | 897 | ||
| C/1989 X1 | 1990 05 26.71534 | 19 30 08.88 | -02 09 27.1 | 413 | ||
| C/1989 X1 | 1990 05 26.71979 | 19 30 04.78 | -02 10 59.2 | 402 | ||
| C/1989 X1 | 1990 05 26.74323 | 19 29 41.81 | -02 15 33.3 | 6.0 | T | 372 |
| C/1989 X1 | 1990 05 26.74453 | 19 29 40.51 | -02 15 49.1 | 372 | ||
| C/1989 X1 | 1990 05 26.93056 | 19 26 40.23 | -02 52 16.9 | 056 | ||
| C/1989 X1 | 1990 05 26.95694 | 19 26 14.57 | -02 57 21.5 | 056 | ||
| C/1989 X1 | 1990 05 26.99743 | 19 25 35.30 | -03 05 14.6 | 503 | ||
| C/1989 X1 | 1990 05 27.02039 | 19 25 12.52 | -03 09 41.9 | 046 | ||
| C/1989 X1 | 1990 05 27.96250 | 19 10 06.33 | -06 09 35.5 | 056 | ||
| C/1989 X1 | 1990 05 27.98681 | 19 09 43.25 | -06 14 06.4 | 056 | ||
| C/1989 X1 | 1990 05 28.02815 | 19 09 03.30 | -06 21 53.5 | 046 | ||
| C/1989 X1 | 1990 05 28.02919 | 19 09 02.40 | -06 22 04.0 | 046 | ||
| C/1989 X1 | 1990 05 28.09271 | 19 08 01.33 | -06 33 50.1 | 575 | ||
| C/1989 X1 | 1990 05 28.30678 | 19 04 39.23 | -07 13 25.3 | 801 | ||
| C/1989 X1 | 1990 05 28.31366 | 19 04 32.63 | -07 14 41.3 | 801 |